B259E-13, C259B-13, P259A-13 Codes

[Ap3x7]

Hello, I was returning from work today and noticed that my check engine light came on during the drive back. I have a 2021 JLU EcoDiesel and the codes come from the Tazer JL that is installed. I have done a little research and haven't found any plausible leads just yet, I'm wondering if anyone has seen these codes before I take it to a shop. The weather just started getting colder and wetter and I'm trying to avoid anything major if I can. The last maintenance/repair work I did was replacing both batteries with new ones.

B259E-13
C259B-13
P259A-13

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[Raptorz]

I also got 2 of these codes. This was a few weeks after I did the aux battery delete and then my main battery died but I think it was unrelated. Did you find out anything with these codes?

 

[Ap3x7]

It ended up being an upstream O2 sensor throwing the codes. I took it to a dealer.
I had a tazer JL installed an I wonder if it makes the codes different from what they should be.

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